a very flat looking foot for the C18 - have you assessed this (by flicking with finger nail) for lead composition - and what if any is the extent of wear? Was this sold as a glass from a particular period.

Not sure how a glass would sound for lead content, but pinging the glass with my finger nail gives a nice clear ring / tone (if that helps)

There is wear / tiny surface scratches around the underside edge of the foot.

No date was given for the age of the glass, I have had it for a while and had some free time today to try and find out the age of this and the other glasses I posted about to try and ID the age of them.

The foot is concave on the underside, but moe to the centre / pontil area. The top surface of the foot is not flat, but rises slightly to meet the stem.

in your first picture the glass does have a greyish cast which is good indication of period, but I'm still worried about the flatness of the foot.The ring from C18 lead glass is unmistakable, and you do consider this to have a good ring, so another plus point. Whilst I remain unconvinced as to the age of this piece, my opinion is that the style depicts a short ale glass from the period 1790 - 1820. The triple ringed/terraced merese/collar looks typical of that period, and is seen often on the 'bristol green' glasses from the Regency period, although it's not a common feature, usually, on flint British glasses - perhaps Continental.? Where's Peter ??

Hi, it looks like a dwarf ale glass from the early 19th century, c1820. There is a nice little handbook called "Dwarf Ale Glasses and their Victorian successors" by Stephen Parry which covers the subject well. The bowl type disappears about 1830. Hope this helps.